Saw.



VE'. PETERSON. slm. APPLIOATIOU FILED yIAB. 29, 1 912.

1,088,719. Patented Mar.3,1914

niiter box.

UNITED STATES PATENT OFFICE.

'FRITZ PETERSON, OF IROCKFORI),y ILLINOIS.

SAW.

Specification of Letters Patent.

Patented Mar. 3, 1914.

Application filed March 29. 1912. Serial No. 687,252.

` The object ot' this invention is to eonsti-uet a. .saw without set inthe teeth and which will rlear itsell and 't'orin a very smooth eut.

ie a side elevation ol iiiy linpioved saw located' in connection withthe guides of a Fig. 2 is a. section on line a a Fig. l. Fig. is aSection of the cutting edge of the saw blade showing the ordinary ilingof a Cross ent saw. i

The saw blade is ol two thicknesses. the .section 'l being thicker thanthe sertieii 2. The teeth 3 are cut in the eeel'ion 1. and a re withoutset. i-Lhand hold 4 is eoiinee'ted to the section 2. A bark 5 connectedto the section 2. y Y

The main 'feature of thi invention is to provide, a saw without set inorder that a smooth eut may be had, this is aeoon'iplished ln theaeeoinpanving drawing. Figure l by ilorii'iing the section of the bladeiii wliirh the teeth are ont thicker thanthe i'en'iaiiider of the.blade.

This construction of saw is especially adapted t'oil use in. connectionwith nfiiter boxes. and niitering` machines, and its application isshown 'at Figs. l and 2 iii which the saw guides 6 only `are shown.their support in connection with the frame of the initer -box ormitering machine being well known.

The guides are formed with a transverse enlarged opening 'T in the head8 and with an enlarged slot 9 extending in the length of the tubularshank of the guide G. A narrow slot l0 in the shank connects the opening7 and the slot i The saw baek 5 is located liii the-opening?, theSection 1 ot' the saw blade is located in the .slot 9 The enlarged slot9 will take the tliif'kei seetioii l oi the saw blade and leaveelearaiiee 'foi' tliesaw dust.

and the `ectioii 2 of the saw blade is' located iii the slot 10. j

y forming llie saw blade' without eet. a i

smooth mit will be had. and a joint cut byl iiiy iniproied saw will litresorting to'aplaiie. y t

By foi-ming the saw with teeth Awithout set. the saw blade can be iiiadeas hard as will allow of filing. while. when the teelli are set, theblade must be inueh .softer to allow of the settingof the teeth withoutbreaking ofi. therefore; the Saw will last longer. v

li): forming the teeth without set, leI material is removed iii inakingaein. than when the teeth are set. thereby makinglr thin pei-.teetly`without construction ol saw applicable Lo a band' lJaw by which moreifeiieers iiiay be eut from a given thickness oi material. l claiiii asmy invention.

.\ back saw having?,Y a web of uniform and parallel thickness, acutting-edge poi-tion ot greater cross-sectional thickness than that oisaid web. teeth on the edge of said 'cutting-edge portion formed withoutset, and' the sides of said cutting-edge portion 'extending,r parallelfrom a point distant ti'oin said teeth, to the cutting: tace of said`teeth. ln testimony wliei'eotI l have hereunto set my hand in presenceof two subseribiiigw'itmesses.

FRITZ PE' `ERSON- Witnesses A. BEHEL, E. D. E. N. BEHEL.

